Study the given graph and answer the question that follows. The chart represents the demand and production of leather bags by five companies U, V, X, Y and Z.

The difference between the average demand and average production of the five companies taken together is:

500

Average of production over all 5 companies = $\frac{Sum\;of\;production\;for\;5\;years}{5}$

= \(\frac{3000+3500+2000+5500+4500 }{5}\)

= \(\frac{ 18500 }{5}\)

= 3700

Average of demand over all 5 companies = $\frac{Sum\;of\;demand\;for\;5\;years}{5}$

= \(\frac{ 6000+1000+5000+2500+6500 }{5}\)

= \(\frac{ 21000 }{5}\)

=  4200

Difference in average production and average demand = 4200 - 3700 = 500